made changes to the answers in quiz

LoopFun.java

@@ -47,9 +47,14 @@ public class LoopFun
       public String encrypt(String word) {
          
         String encrypted = "";
-        for(int i = 0;i<word.length();i++){
-            encrypted += (char)(word.charAt(i) + 3);
+         for (int i = 0; i < word.length(); i++) {
+            char ch = word.charAt(i);
+            if (ch != ' ') {
+                ch = (char)((ch - 'a' + 3) % 26 + 'a');
+            }
+
+            encrypted += ch;
         }
-          return null;
+          return encrypted;
       }
 }

package.bluej

@@ -2,25 +2,25 @@
 dependency1.from=StringUtilitiesTest
 dependency1.to=StringUtilities
 dependency1.type=UsesDependency
-dependency2.from=BonusTest
-dependency2.to=Bonus
+dependency2.from=LoopFunTest
+dependency2.to=LoopFun
 dependency2.type=UsesDependency
 dependency3.from=MathUtilitiesTest
 dependency3.to=MathUtilities
 dependency3.type=UsesDependency
-editor.fx.0.height=722
-editor.fx.0.width=876
-editor.fx.0.x=158
-editor.fx.0.y=216
-objectbench.height=164
+editor.fx.0.height=709
+editor.fx.0.width=1280
+editor.fx.0.x=0
+editor.fx.0.y=303
+objectbench.height=147
 objectbench.width=669
 package.divider.horizontal=0.6
-package.divider.vertical=0.7628294036061026
-package.editor.height=543
+package.divider.vertical=0.7634408602150538
+package.editor.height=490
 package.editor.width=567
 package.editor.x=557
-package.editor.y=43
-package.frame.height=779
+package.editor.y=303
+package.frame.height=709
 package.frame.width=693
 package.numDependencies=3
 package.numTargets=6
@@ -40,20 +40,19 @@ target1.width=110
 target1.x=110
 target1.y=150
 target2.height=50
-target2.name=BonusTest
+target2.name=LoopFunTest
 target2.showInterface=false
 target2.type=UnitTestTargetJunit4
-target2.width=80
-target2.x=120
-target2.y=270
-target3.association=BonusTest
+target2.width=110
+target2.x=10
+target2.y=240
 target3.height=50
-target3.name=Bonus
+target3.name=LoopFun
 target3.showInterface=false
 target3.type=ClassTarget
 target3.width=80
-target3.x=90
-target3.y=300
+target3.x=200
+target3.y=210
 target4.association=MathUtilitiesTest
 target4.height=50
 target4.name=MathUtilities